Any Particular reason why leveling dungeons arent remade for level cap?

They do this with Trials, why not dungeons? Yes I’m aware Hard modes from ARR-SB did this to a point but those were more or less new dungeons with new bosses and rooms and layouts. The question is why can’t I play *Spoilers* The tower of Babil for example at 90 same bosses same shit but amped up for 90s.

I say Babil specifically as it’s mechanically the worst dungeon I’ve played, more so as it’s supposed to be some big climax due to fighting Anima and learning anima has you do like 3 none vital mechanics with none of them weaving into eachother. Seems like a perfect way to reinvigorate leveling dungeons. Just seems a lot more logical as EW dungeons Seemed like a huge joke due to how forgiving, barren and nonthreatening the mechanics are

Also no I’m not asking for savage difficulty but I am asking for bare minimums to them